Connect your
AI agent.

01 / SET UP

Connect your agent

CallAlternative uses MCP: a shared way for an AI application to discover tools and ask them to do a task. Your application needs to support Streamable HTTP MCP with OAuth authorization.

GPT, Claude and Gemini illustrate compatible-agent workflows. Setup depends on your application; native chat-app connectors are not included in this release.

Before you begin

• An active Max subscription and an email-verified account.
• Calling credit and a destination your account can call.
• A compatible agent application with the connection configured.

Basic and Basic Plus do not include AI agent or MCP access.

Never paste credentials into prompts or URLs, or extract tokens from your browser. Only approve applications and return addresses you recognize.

Choose and change permissions

Connections default to read-only. If your agent requests calling access, you can choose Allow calling before connecting. In Connected agents, turn calling off immediately while keeping read access. To allow calling again, reconnect from your agent, request calls:write and approve it. Existing calls continue when calling access is removed.

{
  "name": "account_get_status",
  "arguments": {}
}

{
  "name": "calling_preflight",
  "arguments": {
    "to": "+12025550100"
  }
}

{
  "name": "calls_list",
  "arguments": {
    "limit": 10
  }
}

02 / ASK

Start with one question

Keep your first request small. For example:

“Call the restaurant and ask if they’re open today.”

1. Confirm the recipient. Your agent checks the number and whether your account can call it.
2. Confirm the request. Give your agent permission to place this specific call.
3. Keep the call ID. When calling is enabled, your agent submits the request and uses the returned ID to follow it.

{
  "name": "call_create_with_goal",
  "arguments": {
    "destination": "+12025550100",
    "goal": "Are you open today?",
    "maxDurationSeconds": 30,
    "idempotencyKey": "<unique-operation-UUID>"
  }
}

Example only; nothing runs on this page. Replace the fictional number and placeholder key before using it in your configured agent.

03 / GET THE ANSWER

Find out what happened

Open Calls for captured answers and available transcripts. Your agent can retrieve them through MCP using the same call ID.

Completed means the call ended. Check the captured answer and action outcome to learn whether someone answered and your request was achieved.

{
  "name": "call_get",
  "arguments": {
    "callId": "<returned-call-id>"
  }
}

{
  "name": "call_get_result",
  "arguments": {
    "callId": "<returned-call-id>"
  }
}

{
  "name": "call_hangup",
  "arguments": {
    "callId": "<returned-call-id>",
    "idempotencyKey": "<separate-operation-UUID>"
  }
}

One simple action, too

Ask your agent to confirm a reservation, move a reservation or cancel an appointment. It should collect missing details and get your approval before calling.

“Call the salon and cancel Alex Rivera’s appointment.”

{
  "name": "call_create_with_goal",
  "arguments": {
    "destination": "+12025550100",
    "goal": "Reschedule the reservation.",
    "maxDurationSeconds": 120,
    "idempotencyKey": "<unique-operation-UUID>",
    "action": {
      "type": "reschedule_reservation",
      "userAuthorized": true,
      "target": {
        "reference": "<reservation-reference>",
        "customerName": "Alex Rivera"
      },
      "requestedSlot": {
        "localDate": "2027-04-20",
        "localTime": "19:00",
        "timeZone": "America/New_York"
      }
    }
  }
}

Your agent’s tools

Discover available tools in your connection before using them. Availability depends on your account and the beta features enabled.

One credit pool. A different rate.

AI calls use your shared calling-minute balance. We round connected time up to the next full minute, then deduct 10 calling minutes per minute. Browser calls keep their regular rate.

An unanswered, unconnected call uses zero minutes. A connected voicemail counts as connected time. AI agent access requires Max.

A little help if you get stuck